Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/80-16 | 37/11.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.64 (854.4) | 36.92 (937.84) | 3.29 (83.44) 9.8% |
| Width inches (mm) | 11.02 (280) | 11.5 (292) | 0.47 (12) 4.3% |
| Circum. inches (mm) | 105.68 (2684.18) | 116 (2946.31) | 10.32 (262.13) 9.8% |
| Sidewall Height inches (mm) | 8.82 (224) | 10.46 (265.72) | 1.64 (41.72) 18.6% |
| Revolutions per mile (km) | 599.57 (372.55) | 546.22 (339.41) | -53.34 (-33.15) -8.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.95 mph (35.33 km/h) |
| 25 mph (40.23 km/h) | 27.44 mph (44.16 km/h) |
| 30 mph (48.28 km/h) | 32.93 mph (53 km/h) |
| 35 mph (56.33 km/h) | 38.42 mph (61.83 km/h) |
| 40 mph (64.37 km/h) | 43.91 mph (70.66 km/h) |
| 45 mph (72.42 km/h) | 49.39 mph (79.49 km/h) |
| 50 mph (80.47 km/h) | 54.88 mph (88.33 km/h) |
| 55 mph (88.51 km/h) | 60.37 mph (97.16 km/h) |
| 60 mph (96.56 km/h) | 65.86 mph (105.99 km/h) |
| 65 mph (104.61 km/h) | 71.35 mph (114.82 km/h) |
| 70 mph (112.65 km/h) | 76.84 mph (123.66 km/h) |
| 75 mph (120.7 km/h) | 82.32 mph (132.49 km/h) |
| 80 mph (128.75 km/h) | 87.81 mph (141.32 km/h) |
| 85 mph (136.79 km/h) | 93.3 mph (150.15 km/h) |
| 90 mph (144.84 km/h) | 98.79 mph (158.99 km/h) |
| 95 mph (152.89 km/h) | 104.28 mph (167.82 km/h) |
| 100 mph (160.93 km/h) | 109.77 mph (176.65 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1390 | 1615 | 1739 | 1816 | 1899 | 1958 | 2023 | 2100 | 2206 | 2313 | 2431 | 2526 | 2697 | 2887 | 3034 | 3129 | 3182 | 3377 | 3650 | 4241 |
Better Fuel Economy Factory Ratios Increased Power
